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authorArnaldo Carvalho de Melo <acme@redhat.com>2012-09-27 13:16:00 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-09-27 13:18:49 -0300
commitaec1930b0f6f281a0ca038cd03aceace3fe0bb61 (patch)
tree6145315d849511217a19460de3af364d5c895db7
parentbb2d17a014914b628df42b0c76c85fa8a8c57e79 (diff)
downloadlinux-linaro-stable-aec1930b0f6f281a0ca038cd03aceace3fe0bb61.tar.gz
perf trace: Add aliases for some syscalls
What we get from audit_syscall_to_name isn't what we find in the syscalls: tracepoint events, so add the alias that allows the tool to find prctl, fstat, fstatat and stat. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3m9su7jhwnxvepnr3ne1du5k@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/builtin-trace.c26
1 files changed, 18 insertions, 8 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 5fa1820cc969..8f113dab8bf1 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -9,15 +9,20 @@
static struct syscall_fmt {
const char *name;
+ const char *alias;
bool errmsg;
bool timeout;
} syscall_fmts[] = {
- { .name = "futex", .errmsg = true, },
- { .name = "poll", .errmsg = true, .timeout = true, },
- { .name = "ppoll", .errmsg = true, .timeout = true, },
- { .name = "read", .errmsg = true, },
- { .name = "recvfrom", .errmsg = true, },
- { .name = "select", .errmsg = true, .timeout = true, },
+ { .name = "arch_prctl", .errmsg = true, .alias = "prctl", },
+ { .name = "fstat", .errmsg = true, .alias = "newfstat", },
+ { .name = "fstatat", .errmsg = true, .alias = "newfstatat", },
+ { .name = "futex", .errmsg = true, },
+ { .name = "poll", .errmsg = true, .timeout = true, },
+ { .name = "ppoll", .errmsg = true, .timeout = true, },
+ { .name = "read", .errmsg = true, },
+ { .name = "recvfrom", .errmsg = true, },
+ { .name = "select", .errmsg = true, .timeout = true, },
+ { .name = "stat", .errmsg = true, .alias = "newstat", },
};
static int syscall_fmt__cmp(const void *name, const void *fmtp)
@@ -74,10 +79,15 @@ static int trace__read_syscall_info(struct trace *trace, int id)
if (sc->name == NULL)
return -1;
- snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name);
+ sc->fmt = syscall_fmt__find(sc->name);
+ snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name);
sc->tp_format = event_format__new("syscalls", tp_name);
- sc->fmt = syscall_fmt__find(sc->name);
+
+ if (sc->tp_format == NULL && sc->fmt && sc->fmt->alias) {
+ snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->fmt->alias);
+ sc->tp_format = event_format__new("syscalls", tp_name);
+ }
return sc->tp_format != NULL ? 0 : -1;
}